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1

Występowanie jesionu wyniosłego w strukturze pionowej drzewostanu na wybranych siedliskach lasu wilgotnego

100%
Turczanski K.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2017
|
tom 16
|
nr 3
2

3. Las jako świat roślin i grzybów. Jak zbudowany jest las

100%
Kapuscinski R.
Przyroda Polska
|
2014
|
nr 10
s.4-5
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Struktura pionowa fragmentu Bramy Krakowskiej w okolicach Kamienia

80%
Zapala T.
Problemy Ekologii Krajobrazu
|
2006
|
tom 16
|
nr 1
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Struktura lasów w Polsce na podstawie danych wielkoobszarowej inwentaryzacji stanu lasu

80%
Jabłonski M., Wysocka-Fijorek E., Budniak P.
Sylwan
|
2017
|
tom 161
|
nr 04
In most of European countries, basic information about forests that is used for its monitoring and formulation of national policies comes from the National Forest Inventories (NFIs). Assessment of forest resources at the national level was initiated in Poland in 2005. In 2014, the second cycle of NFI was completed. Since 2010, results of NFI are the main source of information about the amount of forest resources in Poland, their structure and condition. In the paper, we analyse the indicators of forest structure. Classification of forest categories (forested, temporary non−forested, related to forestry), vertical stand structure, species composition and age structure determined directly from NFI's sample plots were compared with descriptions of stands in which plots are located. Data from more than 29,000 NFI sample plots measured in 2010−2014 were analysed. Our results demonstrate that the share of temporary non−forested areas (resulting from management practices) assessed from NFI plots is higher than this based upon the stands description (3.9% and 1.8% respectively). We also observed that results of NFI show the huge discrepancy in percentage of land related to forestry (forest roads generally) in forests of private property comparing to cadastral data (1,2% and 0,04% respectively). Most of forests in Poland (92% based on NFI) are single−layer stands. But it should be emphasised that NFI indicate more than twice higher share of two−layer stands (4.8%) than that resulting from description of stands in which samples are located (2.2%). However, only one third of NFI plots located in two−generation and uneven−aged stands was assessed in the same way. On 80% of sample plots dominant species was in accordance with stand description. On 85% plots there were compatibility of the age of dominant species with age recorded in forest management plans. The results of our research confirm that description of the entire diversity of forests by any of the indicators is not practically possible. Simplifying the forests description occurs during NFI measurements as well as within forest management planning. However, some issues need clarification and additional analysis when NFI is used as a source of forest structure. NFI plots with maximal size of a few hundred square meters seem to be too small to observe vertical structure of stands. On the other hand, it should be recognized whether division of the sample plots into smaller sections does not cause overestimation of the area of temporary non−forested land.
5

Dwunożne roboty

80%
Pavlus J.
Świat Nauki
|
2016
|
nr 08
6

Ocena funkcjonowania zieleni w wybranym osiedlu mieszkaniowym Warszawy - próba zastosowania analizy SWOT

61%
Sitarski M., Buszman S., Jablonska A.
Człowiek i Środowisko
|
2011
|
tom 35
|
nr 3-4
The subject of the authors' interest is the greenery and its relation to the technical infrastructure in multi-family housing estates. The green areas surrounding the residential buildings, regardless of them being a part of the functional structure of a given area, form an autonomous natural value in the technical environment. As a structural element of a given area, the greenery can, together with the technical infrastructure, form both a system of causally and rationally interconnected arrangements, as well as unorganized, chaotic and random layouts. The current state of the housing estates green areas in Polish cities is mostly assessed very critically. One of the main threats is the fact that low aesthetic and functional quality of the public space is usually seen as a norm, i.e. an acceptable state 1/. This is related to the difficulty in assessing the qualitative state of the greenery surrounding the housing estates resulting from the use of different methods, as well as lack of a uniform definition of the greenery/green and biologically active area, both in the works of individual authors and the Polish legislation. This problem also occurs in foreign authors' publications. In order to counteract the present situation, attempts are being made at using different methods of assessing housing estates green areas quality, as well as different proposals for definitions characterizing greenery and biologically active area. This article presents an attempt to assess the quality of green areas surrounding housing estates using the SWOT2/ analysis method, which takes into consideration not only the internal features of given structures, but also the external effects. The SWOT method allows to determine both the internal co-relations of the elements of greenery, as well as the assessment of its ties to the surrounding areas and shows the proper course of action by specifying the most essential factors. The presented article is the first part of a research covering this subject, which includes the analysis of the overall situation with regards to the quality of multi-family housing estates green areas, initial premises of the SWOT method adapted for the quality assessment of the housing estates greenery and explications regarding the terms deemed as part of the method. The Warsaw housing estate greenery assessment method implementation process, together with the obtained results, shall be presented in the next article.
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